DE19709153A1 - Broadcasting programme recording and reproduction method for car radio - Google Patents

Abstract

The method involves storing predetermined parts of a received broadcasting programme in a memory. The stored parts are read from the memory on request and are reproduced acoustically. The memory includes time points in which a time interval of a just received broadcasting programme is provided. Preferably the entire memory content is read and reproduced when the user operates a predetermined key at the car radio. When the user operates a predetermined key at the car radio a part of the memory content, which was recorded before the time point of operation the key, is read and reproduced. The length of the read out and the reproduction is larger the longer the key is operated.

Description

The invention relates to a method for recording and reproducing Broadcasts in a car radio, with predetermined parts of a received Broadcast broadcast stored in memory and on demand from memory can be read out and reproduced acoustically.

The acoustic perception when listening to the radio in the car is influenced by many factors impaired. A large number of interfering noises often prevent the transmitted ones Information fully received by the driver. In addition, the Driver's attention is often fully claimed by traffic is taken. For these reasons, broadcasting in the car is often only "with half an ear", and when the user notices that he was just sent Of particular interest to information, it is often too late for him to do so to be able to register.

With regard to traffic reports that are generally considered to be particularly important, With newer car radios there is often the possibility of storing them in a memory. This is done automatically based on the EON identifier in the RDS signal. The saved Announcement texts can be called up again at a later time by the user will. However, this procedure does not allow any text or music contributions play again.

The invention has for its object the general information recording at To facilitate radio listening in the car.  

This task is performed in a method for recording and reproducing Radio broadcasts in a car radio, as indicated in the preamble of claim 1, solved according to the invention in that the memory at this point in time immediately preceding contiguous time interval of a just received Broadcast contains.

The permanent recording of the broadcast just received according to the Invention enables the user to perceive a not or only partially perceived To hear the passage of text again if desired, preferably by simply adding a certain button on the car radio with which the playback of the memory content is started. The text passage to be reproduced is predominant Number of cases a relatively short passage, for example a sentence or a word, so that for the implementation of the method requires relatively little storage space. Before preferably the time interval stored at each point in time includes an even one received radio broadcast a few seconds to a few minutes.

On a car radio with automatic storage of messages with traffic radio ID, which already contains a suitable memory, this memory can also be used for the permanent recording of the just received round according to the invention radio broadcast can be used. Either the memory is optional for one of these two functions are used, or its storage capacity is appropriate to the two Functions split, with the boundary between the memory areas either fixed can be preset or changeable during operation, for example automatically according to predetermined priority rules.

In a preferred embodiment of the invention, when the user is responsible for the repeated playback of a program section actuated certain button on the car radio, a temporally contiguous part of the memory content preceding this point in time read out and reproduced, the longer the time length, the longer the User holds down the key. Because the duration of a replayed Recording depends on the duration of the key press, the user can on a very simple and memorable way the length of the program to be played again select section. Briefly pressing, for example, only the last word or the last sentence can be repeated, and by pressing and holding the entire memory content be repeated.  

As information missed or not fully understood according to the invention still once can be called up, the driver is less of the traffic distracted, knowing that he can repeatedly hear information important to him.

The permanent recording of the last received part of the one just heard Radio broadcasting is particularly reliable and economically feasible if that Car radio works at least internally with digital signals and a ring buffer as memory or a so-called FiFo memory is used.

Further features and advantages of the invention will become apparent from the following description an embodiment with reference to the drawing. Their only figure shows one schematic block diagram of a set up for the implementation of the invention Car radios.

The car radio contains a tuner 1 , an NF amplifier 2 , a FiFo memory (first-in first-out memory) 3 , a controller 4 and a switch 5 .

In a normal position of the switch 5 , the output signal of the tuner 1 is fed to the AF amplifier 2 in order to be reproduced via loudspeakers (not shown). The output signal of the tuner 1 is also continuously fed to the input of the FiFo memory 3 . If the output signal of the tuner 1 is a digital signal, as is often the case with newer car radios, it can be written directly into the FiFo memory 3 . Otherwise, e.g. B. a FiFo memory with upstream and downstream A / D and D / A converters can be used. Alternatively, an analog storage medium such as an endless tape can be used.

The received radio program is continuously stored in the FiFo memory 3 . If the memory is full, the oldest data is overwritten. As a result, the memory always contains the last N seconds or minutes of the radio program, N being dependent on the size of the FiFo memory 3 .

If the user presses a button provided for this purpose on the car radio (not shown in the figure), the controller 4 switches the switch 3 to the output of the FiFo memory 5 , so that instead of the radio program currently being received, a program part received immediately before is made audible again becomes.

Either the entire memory content of the FiFo memory 3 is read out and reproduced, or the controller 4 determines how long the user holds the button and lets M seconds or minutes of the radio program received immediately before the button be repeated, M being the length depends on the key press and is, for example, between one second and the maximum recording time N of the FiFo memory 3 .

If the car radio, as is often the case with newer devices, has a programmable microprocessor for control and monitoring functions, no additional hardware is required to carry out the invention except for the button and the switch, since the functions of the controller 4 are carried out by the microprocessor can be.

Reference list

1

tuner

2nd

LF amplifier

3rd

FiFo memory

4th

Controller

5

switch

Claims (5)

1. A method for recording and reproducing radio broadcasts in a car radio, wherein predetermined parts of a received radio broadcast are stored in a memory and read out on request from the memory and reproduced acoustically, characterized in that the memory ( 3 ) at any time at this time immediately preceding contiguous time interval of a radio broadcast just received. 2. The method according to claim 1, characterized in that the entire memory content is read out and played back when the user presses a certain key Car radio operated. 3. The method according to claim 1, characterized in that when the user has a certain button on the car radio is pressed, a time preceding this point in time contiguous part of the memory content is read out and reproduced, the longer the user pressed the button, the longer the time holds. 4. The method according to any one of the preceding claims, characterized in that the time interval contained in the memory at any point in time of a received one Broadcast is a few seconds to a few minutes long.   5. The method according to any one of the preceding claims, characterized in that the memory is a ring buffer or a FiFo memory ( 4 ) in which the current radio broadcast in the form of digital data is temporarily stored.